protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression columnDefinitionExpression)
{
var autoIncrement = columnDefinitionExpression.ConstraintExpressions
.OfType<SqlSimpleConstraintExpression>()
.Any(c => c.Constraint == SqlSimpleConstraint.AutoIncrement);
IEnumerable<Expression> newConstraints = columnDefinitionExpression.ConstraintExpressions;
if (this.columnsToMakeNotNull.Contains(columnDefinitionExpression.ColumnName))
{
newConstraints = newConstraints
.Concat(new SqlSimpleConstraintExpression(SqlSimpleConstraint.NotNull));
}
if (autoIncrement)
{
newConstraints = newConstraints
.Where(c => !(c is SqlSimpleConstraintExpression) || ((SqlSimpleConstraintExpression)c).Constraint != SqlSimpleConstraint.NotNull)
.Prepend(new SqlSimpleConstraintExpression(SqlSimpleConstraint.PrimaryKey));
}
if (ReferenceEquals(newConstraints, columnDefinitionExpression.ConstraintExpressions))
{
return base.VisitColumnDefinition(columnDefinitionExpression);
}
else
{
return columnDefinitionExpression.UpdateConstraints(newConstraints);
}
}
protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression columnDefinitionExpression)
{
this.currentIsPrimaryKey = columnDefinitionExpression.ConstraintExpressions
.OfType<SqlSimpleConstraintExpression>()
.Any(c => c.Constraint == SqlSimpleConstraint.PrimaryKey);
var isAutoIncrement = columnDefinitionExpression.ConstraintExpressions
.OfType<SqlSimpleConstraintExpression>()
.Any(c => c.Constraint == SqlSimpleConstraint.AutoIncrement);
var retval = (SqlColumnDefinitionExpression)base.VisitColumnDefinition(columnDefinitionExpression);
if (isAutoIncrement)
{
var longTypeSqlName = this.sqlDataTypeProvider.GetSqlDataType(typeof(long)).GetSqlName(null);
if (((SqlTypeExpression)columnDefinitionExpression.ColumnType).TypeName == longTypeSqlName)
{
retval = new SqlColumnDefinitionExpression(retval.ColumnName, new SqlTypeExpression("BIGSERIAL"), retval.ConstraintExpressions);
}
else
{
retval = new SqlColumnDefinitionExpression(retval.ColumnName, new SqlTypeExpression("SERIAL"), retval.ConstraintExpressions);
}
}
return retval;
}
protected virtual Expression VisitColumnDefinition(SqlColumnDefinitionExpression columnDefinitionExpression)
{
var constraints = this.VisitExpressionList(columnDefinitionExpression.ConstraintExpressions);
if (constraints != columnDefinitionExpression.ConstraintExpressions)
{
return(new SqlColumnDefinitionExpression(columnDefinitionExpression.ColumnName, columnDefinitionExpression.ColumnType, constraints));
}
return(columnDefinitionExpression);
}
protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression expression)
{
this.hashCode ^= expression.ColumnName?.GetHashCode() ?? 0;
return(base.VisitColumnDefinition(expression));
}
protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression expression)
{
this.hashCode ^= expression.ColumnName?.GetHashCode() ?? 0;
return base.VisitColumnDefinition(expression);
}
protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression expression)
{
SqlColumnDefinitionExpression current;
if (!TryGetCurrent(expression, out current))
{
return expression;
}
if (!(this.result &= object.Equals(current.ColumnName, expression.ColumnName)))
{
return expression;
}
if (!(this.result &= current.NodeType == expression.NodeType))
{
return expression;
}
if (!(this.result &= current.Type == expression.Type))
{
return expression;
}
this.currentObject = current.ColumnType;
this.Visit(expression.ColumnType);
if (!this.result)
{
return expression;
}
this.currentObject = current.ConstraintExpressions;
this.VisitExpressionList(expression.ConstraintExpressions);
if (!this.result)
{
return expression;
}
this.currentObject = current;
return expression;
}
protected override Expression VisitColumnDefinition(SqlColumnDefinitionExpression columnDefinitionExpression)
{
this.WriteQuotedIdentifier(columnDefinitionExpression.ColumnName);
this.Write(' ');
this.Visit(columnDefinitionExpression.ColumnType);
if (columnDefinitionExpression.ConstraintExpressions.Count > 0)
{
this.Write(' ');
}
this.WriteDeliminatedListOfItems(columnDefinitionExpression.ConstraintExpressions, c => this.Visit(c), " ");
return columnDefinitionExpression;
}
protected virtual Expression VisitColumnDefinition(SqlColumnDefinitionExpression columnDefinitionExpression)
{
var constraints = this.VisitExpressionList(columnDefinitionExpression.ConstraintExpressions);
if (constraints != columnDefinitionExpression.ConstraintExpressions)
{
return new SqlColumnDefinitionExpression(columnDefinitionExpression.ColumnName, columnDefinitionExpression.ColumnType, constraints);
}
return columnDefinitionExpression;
}
private IEnumerable<SqlColumnDefinitionExpression> BuildForeignKeyColumnDefinitions(PropertyDescriptor referencingProperty, ColumnInfo[] columnInfos)
{
var relatedPropertyTypeDescriptor = this.model.GetTypeDescriptor(referencingProperty.PropertyType);
var referencedTableName = relatedPropertyTypeDescriptor.PersistedName;
var valueRequired = (referencingProperty.ValueRequiredAttribute != null && referencingProperty.ValueRequiredAttribute.Required)
|| referencingProperty.IsPrimaryKey;
var supportsInlineForeignKeys = this.sqlDialect.SupportsFeature(SqlFeature.InlineForeignKeys);
var foreignObjectConstraintAttribute = referencingProperty.ForeignObjectConstraintAttribute;
foreach (var foreignKeyColumn in columnInfos)
{
var retval = this.BuildColumnDefinition(foreignKeyColumn);
if (columnInfos.Length == 1 && supportsInlineForeignKeys)
{
var names = new[] { foreignKeyColumn.DefinitionProperty.PersistedName };
var newConstraints = new List<Expression>(retval.ConstraintExpressions);
var referencesColumnExpression = new SqlReferencesColumnExpression
(
new SqlTableExpression(referencedTableName),
SqlColumnReferenceDeferrability.InitiallyDeferred,
names,
FixAction((foreignObjectConstraintAttribute != null && ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction) != null) ? ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction).Value : (valueRequired ? SqlColumnReferenceAction.Restrict : SqlColumnReferenceAction.SetNull)),
FixAction((foreignObjectConstraintAttribute != null && ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction) != null) ? ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnUpdateAction).Value : SqlColumnReferenceAction.NoAction)
);
newConstraints.Add(referencesColumnExpression);
retval = new SqlColumnDefinitionExpression(retval.ColumnName, retval.ColumnType, newConstraints);
}
yield return retval;
}
if (columnInfos.Length > 1 || !supportsInlineForeignKeys)
{
var currentTableColumnNames = columnInfos.Select(c => c.ColumnName);
var referencedTableColumnNames = columnInfos.Select(c => c.GetTailColumnName());
var referencesColumnExpression = new SqlReferencesColumnExpression
(
new SqlTableExpression(referencedTableName),
SqlColumnReferenceDeferrability.InitiallyDeferred,
referencedTableColumnNames,
FixAction((foreignObjectConstraintAttribute != null && ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction) != null) ? ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction).Value : (valueRequired ? SqlColumnReferenceAction.Restrict : SqlColumnReferenceAction.SetNull)),
FixAction((foreignObjectConstraintAttribute != null && ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnDeleteAction) != null) ? ToSqlColumnReferenceAction(foreignObjectConstraintAttribute.OnUpdateAction).Value : SqlColumnReferenceAction.NoAction)
);
var foreignKeyConstraint = new SqlForeignKeyConstraintExpression(null, currentTableColumnNames, referencesColumnExpression);
currentTableConstraints.Add(foreignKeyConstraint);
}
}
